CVE-2026-56150 — MEDIUM (6.5)

Q: How severe is CVE-2026-56150?

CVE-2026-56150 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-56150?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Fleet Server.

Vulnerability Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Fleet Server can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker can submit a specially crafted request to an upload endpoint that causes excessive memory consumption, which may render Fleet Server unavailable.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Elastic	Fleet Server	>= 8.0.0, < 8.19.11

Related Weaknesses (CWE)

CWE-770

References

https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esVendor Advisory

FAQ

What is CVE-2026-56150?

CVE-2026-56150 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Allocation of Resources Without Limits or Throttling (CWE-770) in Fleet Server can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker can submit a specially crafted request ...

How severe is CVE-2026-56150?

CVE-2026-56150 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-56150?

Check the references section above for vendor advisories and patch information. Affected products include: Elastic Fleet Server.